<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS margin: Margin collapsing and elements with min-height</title>
<link rel="author" title="Bert Bos" href="mailto:bert@w3.org" />
<style type="text/css">
  #container {width: 50px; border-top: 1px solid transparent;
    background: green}
  #parent {height: 50px; background-color: white; margin-top: 50px}
  #following-sibling {height: 50px; background-color: green}
</style>
</head>
  <body>
    <p>There should be two solid green squares and no red on this page</p>

    <div id="container" >
      <div id="parent">
      </div>
      <div id="following-sibling"></div>
    </div>
  </body>
</html>
